body{
    background-image: url(../img/音乐背.jpg);
    background-size: cover;
}
img{
    width: 480px;
}
div{
    margin-top: 30px;
}
video{
    height: 600px;
}
.jv{
    width: 365px;
    height: 100px;
    margin: 0 auto;
}
.jv a{
    margin-left: 40px;
}
a,h1{
    text-align: center;
}
p{
    text-align: center;
}
video{
    display: block;
    margin: 0 auto;
}
.ke{
    position: relative;
}
.ke img{
    position: absolute;
    top: 390px;
}
.li{
    margin-left: 1000px;
}
audio{
    display: block;
    margin: 0 auto;
}